======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '188'
                                          'artist'  "K's Choice"
                                     'text_people'  ''
                                         'release'  'Non-Album Tracks'
                                           'title'  'When Tomorrow Comes (Eurythmic'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'female vocalists', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '126.331'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'COMM:ID3v1 Comment:XXX'                            'Performed March 6, 1999'
'TALB' (Album/Movie/Show title)                     'Non-Album Tracks'
'TBPM' (BPM (beats per minute))                     '126.331'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'When Tomorrow Comes (Eurythmic'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               "K's Choice"
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'female vocalists', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.37 dB'
'TXXX:replaygain_track_peak'                        '0.431060'

========================== row from database ==========================
                                              'id'  1532554
                                            'path'  /data/Music/Bulk/00poprockelectronic/K_s Choice/MBZ;#K_s Choice;#[non-album tracks];#03;#When Tomorrow Comes (Eurythmics cover, live).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  188
                                           'genre'  rock-pop
                                        'filesize'  3022383
                                           'mtime'  1620390703
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic K_s MBZ;#K_s Choice;#[non album tracks];#03;#When (Eurythmics cover, live) rock pop
                                      'tag_artist'  K's Choice
                                     'tag_release'  Non-Album Tracks
                                       'tag_title'  When Tomorrow Comes (Eurythmic
                                             'bpm'  126.331
                                    'search_title'  'comes':3 'eurythmic':4,5 'tomorrow':2 'when':1
                                   'search_artist'  'choice':4 'k':1 'ks':3 's':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4
                                     'search_rest'  '00poprockelectronic':1 '03':16,19 'album':14 'choice':10,12 'cover':23,24 'eurythmics':21,22 'k':2,5,8 'live':25,26 'mbz':4,7 'non':11,13 'pop':28 'rock':27 's':3,6,9 'tracks':15,18 'when':17,20
                                    'search_combo'  '00poprockelectronic':14 '03':29,32 'album':11C,27 'choice':9B,23,25 'comes':3A 'cover':36,37 'eurythmic':4A,5A 'eurythmics':34,35 'k':6B,15,18,21 'ks':8B 'live':38,39 'mbz':17,20 'non':10C,24,26 'nonalbum':12C 'pop':41 'rock':40 's':7B,16,19,22 'tomorrow':2A 'tracks':13C,28,31 'when':1A,30,33
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'female vocalists', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620390703.042978  (2021-05-07 14:31:43)
                             'size'  3022383